J Jackie New member Jun 25, 2011 #1 How much heat must be added to a 3-kg block of ice at -23°C to change it to water at 8 degrees? a) 59 kcal b) 300 kcal c) 93 kcal d) 330 kcal e) 290 kcal
How much heat must be added to a 3-kg block of ice at -23°C to change it to water at 8 degrees? a) 59 kcal b) 300 kcal c) 93 kcal d) 330 kcal e) 290 kcal
R Russ New member Jun 26, 2011 #2 The temperature change is 31 degrees. The block weighs 3-kg. The answer is 93. A k-calorie is the amount of energ it takes to raise one kilogram one degree celsius in temperature.
The temperature change is 31 degrees. The block weighs 3-kg. The answer is 93. A k-calorie is the amount of energ it takes to raise one kilogram one degree celsius in temperature.
